the last victims of the sandy hook school shooting have been laid to rest. but a bit of goodness has shown up in the form of cards and packages. letters from children, from their parents, from all around the u.s., and, indeed, all around the world. here is cnn's lisa sylvester. >> a perfect b. >> reporter: 4-year-old keylynn takes her time, working to get each word right. >> start here. >> reporter: she's writing a letter. >> dear parents, i know that you are upset. >> reporter: a letter to the parents of the children killed in the newtown shooting. she and her mother live in bowie, maryland, have never been to newtown. never been to the state of connecticut. but they wanted to show the town that they care. >> we're writing letters just to let them know that, you know, our hearts are with them, they're in our prayers. >> because i want to make them cheer up. >> right away we started seeing mail volume come in, began with a few hundred, and now it is thousands per day we're receiving. >> want to start handing the packages -- >> reporter: in the middle of the